Description:
- CH4 adopts high-stability NDIR infrared sensor, specially for detecting flammable methane gas in coal mine tunnels, biogas stations, waste incineration exhaust to prevent explosion risks;
- SO2 and NO2 adopt independent high-selectivity electrochemical sensors, effectively resist cross interference of mixed acid flue gas, stably measure acidic toxic pollutants produced by coal combustion, cement kiln and chemical leakage.
Two sampling modes are optional: standard diffusion sampling and 1L/min pump suction module for deep flue pipeline gas extraction. Equipped with LCD screen to synchronously display three gas concentration, unit and real-time alarm status, supports storage of up to 9999 groups of alarm records for enterprise emission filing and hidden danger traceability.
It owns Ex ib IIB T3 explosion-proof grade and IP65 dustproof & waterproof performance, lightweight 300g handheld design, 100 hours long continuous standby under diffusion mode. Widely applied in coal mines, thermal power boilers, cement kilns, waste incineration plants, chemical workshops and environmental law enforcement flue gas spot inspection.
Features:
- Detects 1–5 gases simultaneously
- Compatible with electrochemical, NDIR, PID, and semiconductor sensors
- Flexible gas configuration for different detection environments
- Pump suction or diffusion sampling mode (optional)
- LCD display showing gas concentration, gas type, and alarm status
- High-precision imported sensors for accurate measurement
- Built-in self calibration and zero calibration functions
- Temperature and pressure compensation for reliable readings
- Two-level alarm system: sound, light, and vibration
- Adjustable alarm set points
- One-key factory reset function
- Large capacity rechargeable lithium polymer battery
- Durable PC + TPE housing: anti-slip, waterproof, dustproof, explosion-proof
- Stainless steel filter for better gas flow and sensor protection

Technical Specification:
| Gas Detected | CH4 Methane, SO2 Sulfur Dioxide, NO2 Nitrogen Dioxide; Customized by customers | ||
| Detection principle | CH4: NDIR Infrared Sensor; SO2 & NO2: Separate Independent Electrochemical Sensor;
Customized by customers |
||
| Sampling Method | Diffusion type or Pump suction(1L/min) | ||
| Measure Range | CH4: 0~100%vol, SO2: 0~100ppm, NO2: 0~100ppm; As gas type | ||
| Resolution | 1%LEL、0.1%VOL、1PPM、0.1PPM | ||
| Precision | ≤± 3% F.S. | ||
| Data store | 9999 groups alarm information | ||
| Response Time | ≤10S | Recovery Time | ≤10S |
| Repeatability | ≤±1% | Linearity error | ≤±1% |
| Zero shift | ≤±1%(F.S/Y) | Display | LCD screen |
| Operating language | English or Chinese | Gas unit | PPM, %VOL, %LEL |
| Temperature | -40~70℃ | Humidity | 0-95%RH |
| Explosion-Proof | ExiaⅡCT4 | Protection level | IP66 |
| Alarm mode | Sound, light and vibration | Operating time | 100hours(off pump) |
| Dimensions | 205*75*32mm | Weight | 300g |
Remark: If you need gas or measuring range not listed on the above, pls send us your details requirments for further discussion.
Company profile
We Henan Oceanus is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of Gas detection system and Environment equipments since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.

01. Business areas
As a leader in the field of Gas detector and Air quality monitor system, we Henan Oceanus will be continued to expand its business scope and provide customers around the world with customizable Air quality monitor system of various types and specifications.
02. Values and ideas
Our company upholds the core values of integrity and quality service, focusing more on friendship with our customers. We always adhere to integrity management, customer-centered, and provide a full range of pre-sales, sales, and after-sales services to ensure that customers can be worry-free when using our products.
03. Global Service Network
We have a comprehensive global service network, offering timely, professional pre-sales consultation, after-sales service, and technical support for overseas users. Regardless of where users are located, they can enjoy our attentive and thoughtful service.
04. Customer Service
With excellent products and services, Henan Oceanus Gas detector and Air quality monitor system have been exported to more than 100 countries around the world and have won widespread praise.

Our After-sales service:
1. OEM service for LOGO, model, Technical Parameters, Operation manual, etc.
2. Free calibration service and provide calibration methods.
3. One year warranty and lifetime warranty
Our address:
No. 2206, Wenhua Chanye Building Block B, No. 77, Shangding Road, Zhengzhou Area, Henan Pilot Free Trade Zone
Email: info@china-oceanus.com
Telephone: +86 0371 60998169
Mobile/Whatsapp: +86 15981942832
Mobile/Whatsapp: +86 13673683950





